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Single Family ResidenceResidential
$1,126,167$607 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $650,000 on Jun 3, 2016

321 CONSTELLATION CLOSE

SEA RANCH, CA
3
Beds
2
Baths
1,855 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.62 ac
Lot SizeThe size of the land the home sits on, from county records.
1988
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
3
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.1M
$1M low$1.2M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$650,000 · Jun 3, 2016
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$456,167
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$364,934
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.62%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$520,000
EVERBANK · recorded Jun 3, 2016
2nd MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$150,000
BANK OF AMERICA

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,739 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$769,462 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$307,783
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$461,679
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$754,376

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.20
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
72
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
30
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountySONOMA
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.2005
Lot (acres)The size of the land the home sits on, from county records.0.62
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.None
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(7)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(2)

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Horicon Elementary SchoolD+
Elementary · Grades KG–8 · 3.6 mi
H
Point Arena High SchoolD+
High · Grades 9–12 · 21.2 mi

District: Point Arena Joint Union High School District

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.Yes

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

321 Constellation Close measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth more than 81% of homes in Sonoma County
  • Costs more per square foot than 77% of homes in Sonoma County
  • Bigger than 66% of homes in Sonoma County
  • Has a bigger lot than 80% of homes in Sonoma County
  • Newer than 69% of homes in Sonoma County

How it measures up in Sonoma County

The dot is this home. The mark in the middle is the typical home in Sonoma County.

Estimated value$1,126,167
CheaperTypical $766,658Pricier

Pricier than 81% of homes nearby

Price per ft²$607
CheaperTypical $487Pricier

Pricier than 77% of homes nearby

Living area1,855 ft²
SmallerTypical 1,560 ft²Bigger

Bigger than 66% of homes nearby

Lot size0.62 ac
SmallerTypical 0.17 acBigger

Bigger than 80% of homes nearby

Year built1988
OlderTypical 1978Newer

Newer than 69% of homes nearby

How 321 Constellation Close ranks against every home in each area.
MeasureThis homeSonoma County
Estimated valuepricier than$1,126,16781% of homes
Price per ft²pricier than$60777% of homes
Living areabigger than1,855 ft²66% of homes
Lot sizebigger than0.62 ac80% of homes
Year builtnewer than198869% of homes

About 321 Constellation Close

How much is 321 Constellation Close, Sea Ranch, CA worth?

The TopHap Estimate for 321 Constellation Close, Sea Ranch, CA is $1,126,167 as of Jul 14, 2026. The likely range is $1,024,256 to $1,228,078. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 321 Constellation Close, Sea Ranch, CA last sell?

321 Constellation Close, Sea Ranch, CA last sold on Jun 3, 2016 for $650,000, according to the county's recorded deed. TopHap holds 4 recorded sales for this parcel.

How big is 321 Constellation Close, Sea Ranch, CA?

321 Constellation Close, Sea Ranch, CA has 3 bedrooms, 2 bathrooms, 1,855 square feet of living space and a 0.62-acre lot.

When was 321 Constellation Close, Sea Ranch, CA built?

321 Constellation Close, Sea Ranch, CA was built in 1988, making it 38 years old. The building has 2 stories.

What schools serve 321 Constellation Close, Sea Ranch, CA?

321 Constellation Close, Sea Ranch, CA is assigned to Horicon Elementary School (elementary), rated D+; Point Arena High School (high), rated D+. All sit in Point Arena Joint Union High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 321 Constellation Close, Sea Ranch, CA compare to other homes in Sonoma County?

Among the 154,970 homes in Sonoma County, it is worth more than 81% of them ($1,126,167 against a typical $766,658), its price per square foot is higher than 77% of them ($607 against a typical $487), it is bigger than 66% of them (1,855 ft² against a typical 1,560 ft²), its lot is bigger than 80% of them (0.62 ac against a typical 0.17 ac) and it is newer than 69% of them (1988 against a typical 1978). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 321 Constellation Close, Sea Ranch, CA?

The 2025 property tax bill for 321 Constellation Close, Sea Ranch, CA was $8,739. The county assessed it at $769,462.

Closest homes

Assigned schools

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